RTCPeerConnection: createDTMFSender() method
Deprecated
Avoid using this feature in new projects. This feature may be a candidate for removal from web standards or browsers.
Non-standard: This feature is not standardized. We do not recommend using non-standard features in production, as they have limited browser support, and may change or be removed. However, they can be a suitable alternative in specific cases where no standard option exists.
The createDTMFSender() method of the RTCPeerConnection interface creates a new RTCDTMFSender object associated with the specified MediaStreamTrack, which can be used to send DTMF tones over the connection.
This method is deprecated and should not be used. Instead, use the RTCRtpSender.dtmf property to access the DTMF sender associated with a specific sender.
Syntax
createDTMFSender(track)
Parameters
track-
A
MediaStreamTrackobject representing the track to associate with the new DTMF sender.
Return value
A new RTCDTMFSender object.
Examples
Using createDTMFSender()
This example creates a new DTMF sender associated with the specified track.
async function getDtmfSender() {
const stream = await navigator.mediaDevices.getUserMedia({ audio: true });
const pc = new RTCPeerConnection();
const [track] = stream.getAudioTracks();
return pc.createDTMFSender(track);
}
Using RTCRtpSender.dtmf instead
The previous example can be rewritten using the RTCRtpSender.dtmf property of the sender returned by RTCPeerConnection.addTrack():
async function getDtmfSender() {
const stream = await navigator.mediaDevices.getUserMedia({ audio: true });
const pc = new RTCPeerConnection();
const [track] = stream.getAudioTracks();
const sender = pc.addTrack(track, stream);
return sender.dtmf;
}
Specifications
This feature is non-standard and not part of any specification.